Results 61 to 70 of about 25,627 (245)

Genomic Evaluation in Nellore Cattle for Reproductive Traits: Multiple Ways to Account for Missing Pedigrees

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Missing pedigrees are a common problem in most populations. Animals with unknown ancestors are usually treated as founders; however, this can underestimate inbreeding, not properly account for different base populations, and bias breeding values.
Larissa Temp, Gabriel Gubiani, Ludmilla Brunes, Claudio Magnabosco, Fernando Bussiman, Jorge Hidalgo, Daniela Lourenco, Fernando Baldi   +7 more
wiley   +1 more source

Blood parameters as a possible indicator of feed efficiency in Nellore bulls

Semina: Ciências Agrárias
The objective of this study was to investigate the relationships between energy, protein, enzymatic metabolism, and residual feed intake (RFI) in purebred Nellore bulls.
Alana Maria Menezes Di Calaça, Victor Rezende Moreira Couto, Leonardo Frederico Nishimoto Souza, Émerson Guimarães Moraes, Tiago Pereira Guimarães, Juliano José de Resende Fernandes   +5 more
doaj   +1 more source

Composição química das 9-11AS costelas de tourinhos Nelore e cruzados terminados em confinamento em relação ao status nutricional na fase de pastejo. [PDF]

, 2011
Duzentos e trinta e seis tourinhos Nelore (NE) e cruzados Y2 Canchim + Y2 Nelore (CN), Y2 Angus + Y2 Nelore (AN) e Y2 Simental + Y2 Nelore (SN), recriados com dois níveis de ingestão de concentrado (O e 3 kg/animal.dia), em pastagem de coast-cross ...
ALENCAR, M. M. de, ALLEONI, G. F., BERNDT, A., CRUZ, G. M. da, LANNA, D. P. D., TULLIO, R. R.   +5 more
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Low levels of taurine introgression in the current Brazilian Nelore and Gir indicine cattle populations [PDF]

, 2015
Background: Nelore and Gir are the two most important indicine cattle breeds for production of beef and milk in Brazil. Historical records state that these breeds were introduced in Brazil from the Indian subcontinent, crossed to local taurine cattle in ...
Ajmone-Marsan, Paolo, Boison, Solomon A., Bomba, Lorenzo, Carvalheiro, Roberto, da Silva, Marcos V. B., Garcia, Fernando, Höller, Daniela, Milanesi, Marco, Mészáros, Gábor, Neves, Haroldo H. R., Perez OBrien, Ana M., Sonstegard, Tad S., Sölkner, Johann, Utsunomiya, Yuri T., VanTassell, Curtis P.   +14 more
core   +2 more sources

Genetic Parameters of Resilience Indicators Across Growth in Beef Heifers and Their Associations With Weight, Reproduction, Calf Performance and Pre‐Weaning Survival

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In tropical extensive beef cattle systems, heifers raised on pasture are exposed to various environmental challenges that affect their growth and reproductive performance during the first breeding. Resilience indicators derived from deviations in longitudinal traits can quantify the magnitude of these challenges and the ability of an animal to
Gustavo R. D. Rodrigues, Júlia P. S. Valente, Vanessa T. Rezende, Luis F. C. Araújo, João B. Silva Neto, Lúcio F. M. Mota, Mário L. Santana, Roberta C. Canesin, Sarah F. M. Bonilha, Lucia G. Albuquerque, Maria E. Z. Mercadante, Joslaine N. S. G. Cyrillo   +11 more
wiley   +1 more source

REPRODUCTIVE TRAITS SELECTION IN NELORE BEEF CATTLE [PDF]

Ciência e Agrotecnologia, 2015
Genetic breeding programs of beef cattle in Brazil are including new features, mainly related to reproductive efficiency.Thus, it is necessary to study the effectiveness of selection and quantify genetic gain for these traits in herds. This study estimated genetic and phenotypic parameters and genetic trends for reproductive traits used in breeding ...
Moreira, Heverton Luis, Buzanskas, Marcos Eli, Munari, Danisio Prado, Canova, Érika Breda, Lôbo, Raysildo Barbosa, de Paz, Claudia Cristina Paro   +5 more
openaire   +7 more sources

Genomic Prediction Ability for Novel Profitability Traits Using Different Models in Nelore Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The aim of this study was to assess the accuracy, bias and dispersion of genomic predictions for accumulated profitability (APF) and profit per kilogram of liveweight gain (PFT) in Nelore cattle using different prediction approaches. The dataset consisted of 3969 phenotypic records for each trait. The pedigree harboured information from 38,930
Letícia Silva Pereira, Cláudio Ulhôa Magnabosco, Guilherme Rosa, Nedenia Bonvino Stafuzza, Tiago Zanett Albertini, Minos Carvalho, Raysildo Barbosa Lobo, Elisa Peripolli, Eduardo da Costa Eifert, Fernando Baldi   +9 more
wiley   +1 more source

Characterization of Oligofructose-Induced Acute Rumen Lactic Acidosis and the Appearance of Laminitis in Zebu Cattle

Animals, 2020
The objective of this study was to characterize oligofructose-induced acute rumen lactic acidosis and its consequences in zebu cattle. We used 29 Nellore heifers which were submitted to experimental induction of laminitis by oligofructose excess.
Rejane dos Santos Sousa, Francisco Leonardo Costa de Oliveira, Mailson Rennan Borges Dias, Natalia Sato Minami, Leonardo do Amaral, Juliana Aparecida Alves dos Santos, Raimundo Alves Barrêto Júnior, Antonio Humberto Hamad Minervino, Enrico Lippi Ortolani   +8 more
doaj   +1 more source

Genomic Analysis of Taurine and Indicine Ancestry in the Montana Tropical Composite Population

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The Montana Tropical cattle, a Taurine and Indicine composite, were developed in Brazil since 1994 and were based on crossing four biological types of cattle: zebu (mainly Nelore), tropical adapted taurine (mainly Senepol and Romosinuano), British taurine (mainly Angus) and continental taurine (as Charolais, Simental and Limousin).
Camila Alves dos Santos, El Hamidi Hay, Elisangela Chicaroni de Mattos Oliveira, Rafael Espigolan, José Bento Sterman Ferraz, Tiago do Prado Paim   +5 more
wiley   +1 more source

Estudo da infestação artificial de carrapatos Riphicephalus (Boophilus) microplus em fêmeas bovinas Nelore, Angus x Nelore e Senepol x Nelore. [PDF]

, 2015
A resistência de bovinos de diferentes grupos genéticos ao carrapato Riphicephalus (Boophilus) microplus foi avaliada por meio de infestação artificial, utilizando-se 68 fêmeas dos grupos genéticos Nelore (NE, 25), Angus x Nelore (AN, 19) e Senepol x ...
ALENCAR, M. M. de, CHAGAS, A. C. de S., FERREZINI, J., OLIVEIRA, M. C. de S., SCHIAVONE, D. C.   +4 more
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